The Book of Hebrews is written to Jewish believers in Christ who were tempted to not follow Jesus wholeheartedly. Instead, they and we today, are called to follow Jesus through obedience and faith. We are supposed to be aiming for Jesus. Following Him will involve a cross and daily death. Everything we want to do should be pleasing to the Lord. We must persevere or we were never Christ's. We must encourage each other daily because sin deceives and cannot deliver. If we want to do the will of God, He will ensure that we do.
In the Book of Hebrews, God reminds us that we should not stray from the truth. We need to remember this, especially during times of trial.